A library for handling the Ogg container format. Note that this just deals with the Ogg container, not with the contained Vorbis audio or Theora video etc. Includes a commandline tool (hogg) for querying files, merging and ripping tracks, hexdumping packets and pages and so on.

2 Libraries

2.1 Music composition

Haskore is a collection of Haskell modules designed for expressing musical structures in the high-level, declarative style of functional programming. Haskore is a means for describing music - in particular Western Music - rather than sound. It is not a vehicle for synthesizing sound produced by musical instruments, for example, although it does capture the way certain (real or imagined) instruments permit control of dynamics and articulation. Haskore compositions can be translated into various audible formats like MIDI, CSound and SuperCollider. (Former versions in LISP could generate traditional notation output, but this is currently not available in the Haskell version.)

Signal processing related to audio effects coded in plain Haskell. There is both a low-level interface and a framework for automatical inference of sample rate and amplitude of signals in a sound processing network. This generalizes the usual restricted splitting into audio rate and control rate signals. There is an interface for using synthesized sounds for rendering Haskore music. Recent versions require Numeric Prelude. See an early paper on the concepts. Highly experimental.

Modular synthesizer using Yampa. Can process SoundFont files. There was a presentation at Haskell Workshop 2007 in Freiburg, Germany, of which a video was recorded.

2.3 Wrappers

HOpenAL

A Haskell Binding for OpenAL and ALUT. The goal of this project is to provide a binding for OpenAL, a cross-platform 3D audio API, appropriate for use with gaming applications and many other types of audio applications.

A port of LADSPA (Linux Audio Developer's Simple Plugin API) to Haskell. Still highly experimental. The project can be regarded as an example of how to create plugins and shared libraries in Haskell without making use of hs-plugins.